ASTM A106 Grade B Feedwater Heater Tube from China
Seamless A106 Gr.B carbon steel tube, 152.4 mm OD for feedwater heaters in steam cycles. Classifies under 7304.39.0004 for seamless nonalloy tubes suitable for feedwater heaters within 38.1-190.5 mm diameter. Used in fossil fuel power stations for preheating boiler feedwater.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
Import Tips
• Include NDT (non-destructive testing) reports like ultrasonic testing results for high-pressure applications
• Document compatibility with feedwater chemistry to support end-use classification
• Differentiate from line pipe uses which classify under 7304.29